Granted Patent
Utility
US 4,801,008 · App. 07/212,165
Dispensing device having static mixer in nozzle
Inventor:
Thomas Rich
Patented Case
View Patent ↗
Granted: Jan 31, 1989
Filed: Jun 24, 1988
Inventor
Thomas Rich
Assignee (at issue)
W. R. Grace & Co.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.